Rmz 250 backfiring

Hey guys and gals, got a 08 rmz 250 runs great but when ever I get off the throttle it sounds like then 4th of july. And tips on how to minimize the backfiring? THANKS

Is it out of the carb or exaust

if its carb might need to redo valve clearances

Check the valves, may need shimmed more than likely

Check the valves, may need shimmed more than likely

I'll try it!

Also check your jetting and make sure you do not have any leaks in exhaust.

Adjust fuel mixture screw problem solved

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